Mug cap



FIG. 1 is a top, front, right perspective view of a mug cap;

FIG. 2 is a bottom, front, left perspective view of a mug cap;

FIG. 3 is a front elevation view of the mug cap;

FIG. 4 is a rear elevation view of the mug cap;

FIG. 5 is a left side elevation view of the mug cap;

FIG. 6 is a right side elevation view of the mug cap;

FIG. 7 is a top plan view of the mug cap;

FIG. 8 is a bottom plan view of the mug cap; and,

FIG. 9 is a top, right, rear perspective view of the mug cap.

The broken lines, and the areas inside the broken lines, representportions of the mug cap that form no part of the claimed design.

CLAIM The ornamental design for a mug cap, as shown and described.